A document with sensitive Worker's Compensation claim information was accidentally sent out with an email to a limited number of Antioch Unified School District employees. Social Security numbers and other information related to current and former employees that reported injuries were exposed. The incident occurred on January 18 and people who received the email were instructed to remove and destroy any saved information contain in the email. Those who received the email were also instructed to provide written verification that they had removed and destroyed the information.